MK3 FL IPC swap Trend > Titanium

[ezior222]

Hello, I'd like to replace oryginal 2line IPC in MK3 FL to big LCD from Titanium

Whats the easiest way to config new IPC inc. mileage set?
Only asbuilt read from BCM and write to new IPC? Mileage set i see in Spec. procedures but tell me one, I've to pay credit if new speedo have lower mileage than original?